Mat(redirected from Multifocal atrial tachycardia)
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Related to Multifocal atrial tachycardia: atrial fibrillation, wandering atrial pacemaker
A general term for Russian profanity. The use of mat is illegal in Russia, though this is only enforced sporadically. However, inadvertently using mat can make it more difficult (or at least awkward) to conduct business in Russian.